Manual for the KMD 2.5 ccm russian diesel engine Not directly related to cars, but as I got hands on that vintage diesel engine and I found that the manual is available nowhere. I'll post here pictures of that manual as well as a (AI generated) translation to english. Most important was for me the break-in procedure and the stock needle settings. 1. Technical Data Cylinder diameter: 14.5 mm Piston stroke: 15 mm Displacement (working volume): 2.48 cm³ Power (hp), at least: with a 3.2 mm nozzle: 0.35 hp with a 4.0 mm nozzle: 0.39 hp Speed with an air propeller (Ø160 mm, pitch 200 mm): ~14,000 rpm Compression ratio: 12–16 Direction of rotation: counterclockwise (viewed from the propeller side) Engine mass: ~180 g Fuel mixture (by volume): 45 % kerosene 31 % ether 8 % castor oil 16 % MS‑20 oil Service life (minimum): 5 hours 2. Scope of Delivery The KMD 2.5 micro-engine is packaged in a box and includes the following components (quantity in parentheses): KMD 2.5 micro-engine (...